.nav-tip {
	border: 1px solid #e9ecf1;
	margin-top: 0;
}
.nav-tip li {
	width: 50%;
	display: block;
	margin: auto;
	float: left;
	border: 1px solid #e9ecf1;
	border-width: 0 1px;
	margin-left: -1px;
}